Visual Fault Locator (VFL) is the only handy tools in troubleshooting fiber optics faulty cable. It can test fiber continuity by launching laser source into one end & clear visible light on the other end. It is useful tool to detech improper fiber optics splicing and faulty indoor fiber optics pigtails and patchcords.. VFL can detects fiber optics continuity up to 30km - 50km length..
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